<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>按钮效果</title>
  <link rel="stylesheet" href="../css/2.css">
</head>
<body>
  <div>
    <div id="btn1">
      hello
      <a href="#">Button</a>
      <a href="#">Button</a>
    </div>
    <div id="btn2">
      <a href="#">Button</a>
    </div>
  </div>

  <script src="../js/2.js"></script>
</body>
</html>